Sustainability isn't an option—it's a responsibility we owe to future generations.

The hardest thing to explain is the glaringly evident which everybody had decided not to see.

I think that the best thing that you can do is to be true to yourself and to be honest with yourself.

The only valid data for psychology are the reports of trained observers.

Innovation is not just about technology; it's about changing the way we think and operate.

The essence of mathematics lies in its freedom.

自由是人类参与自身发展的能力，是我们塑造自我的能力。